MASUVALLEY AND PARTNERS

Trusted Legal Expertise from UK/US to Asia
With a growing network of legal professionals in the UK, US, Japan, China, Vietnam, and Thailand, Masuvalley & Partners offers full-service legal support – from IP protection to corporate, dispute resolution, and cross-border transactions.
We are your trusted legal partner for doing business across the UK/US and Asia.

UK

US
JAPAN
CHINA
THAILAND
VIETNAM

The London office is the core of Masuvalley & Partners’ international practice. We provide full-service legal services across all major legal areas. Our multilingual cross- border legal team helps clients set up their businesses in the UK, handle commercial transactions and represent them in litigation. We also specialise in bridging the legal gap between the UK and Asian legal systems, helping European clients secure and enforce their IP rights in Japan, China and Southeast Asia.

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    Corporate and commercial law

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    Intellectual property (patents, trademarks, copyright)

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    Employment and immigration

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    Dispute resolution and litigation

UK

US

JAPAN
CHINA
THAILAND
VIETNAM

In the US, we focus on commercial value-driven IP. We assist our clients in acquiring and managing intellectual property rights throughout the United States, and monetizing them through licensing, joint ventures, and enforcement strategies. We also assist in valuing intellectual property rights and negotiating with US-based partners.ments

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    US trademark and patent prosecutions

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    IP portfolio strategy and licensing

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    Technology transfer and monetisation

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    IP due diligence for M&A

UK
US

JAPAN

CHINA
THAILAND
VIETNAM

Our Tokyo branch specializes in supporting domestic and international clients with patent and trademark filings in Japan, as well as commercial disputes. We work closely with local patent attorneys and patent offices to ensure smooth prosecution and enforcement. In addition, we support the monetization of rights through licensing and portfolio evaluations based on Japan’s strong intellectual property enforcement framework.

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    Patent and Trademark Filing in Japan

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    Office Actions and Appeals

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    Licensing and Technology Monetization

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    Employment and Immigration

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    Dispute Resolution and Litigation

UK
US
JAPAN

CHINA

THAILAND
VIETNAM

With a dedicated team in China, we help clients worldwide protect their inventions and brands in one of the most complex IP regimes in the world. We assist with CNIPA procedures, litigation support and IP-related dispute resolution. We have a particular focus on monetizing through licensing and strategic partnerships in the Chinese market.

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    China domestic and international IP filing

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    Administrative and civil enforcement

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    IP licensing and commercialization

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    Monitoring and opposition services

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    Brand protection throughout China

UK
US
JAPAN
CHINA

THAILAND

VIETNAM

Our Bangkok office is the hub for our ASEAN trademark practice. In addition to direct filing services in Thailand, we provide coordinated ASEAN filings through the Madrid Protocol or national procedures. We also focus on anti-infringement measures such as market enforcement, customs records and regional licensing strategies to protect your brand across Southeast Asia. We also provide general company formation, franchise and license agreements.

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    Trademark registration throughout ASEAN

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    Anti-counterfeiting strategies

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    Local monitoring and enforcement

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    Company formation, franchise and licensing agreements

UK
US
JAPAN
CHINA
THAILAND

VIETNAM

Vietnam is a fast-growing economy and an important IP jurisdiction in Southeast Asia. Our services include filing and managing trademark portfolios, handling oppositions and enforcing rights. We work with local authorities and law firms to ensure brand protection in this emerging market. We also provide general company formation, franchise and license agreements.

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    Domestic Trademark Filing

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    IP Portfolio Management

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    Local Enforcement and Raid Assistance

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    Infringement Monitoring

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    Company Formation, Franchise and License Agreements

Countries of
the Constantly IP filings

20

Lawyers & Specialsts

40+

Active Law firm’s
connections

200+